Crate shell fixing device

摘要: The invention discloses a crate shell fixing device. device comprises supporting column devices, shell, bases, rotary knobs, columns and top faces. At least two devices are fixedly mounted at the shell. A plurality of bases pasted to surfaces devices. composed knobs one ends columns. faces other Inner threads arranged on knobs. Outer inner back Areas base same. grooves formed in surface base. Maintaining polishing not required. Time energy can be saved greatly. Working efficiency is improved. Hand hurting by accessories does occur. Accessory damage avoided. Accurate mounting position quickly precisely determined.